Re: [PATCH 6/10] lguest code: the little linux hypervisor.

From: Andi Kleen
Date: Fri Feb 09 2007 - 06:58:21 EST


On Fri, Feb 09, 2007 at 03:54:37AM -0800, Zachary Amsden wrote:
> Andi Kleen wrote:
> >>Yes, it is a bit, umm, innovative. If it is going to be kept, even if
> >>just for devel logging, you should disable interrupts around it.
> >>Changing segments is not a normal thing to do.
> >>
> >
> >Actually that wouldn't be needed because interrupts are not allowed to do
> >any user accesses. And contrary to the name it doesn't actually change
> >the segment registers, only state used by *_user.
> >
>
> My bad, I fell for the same mistake as everyone. Set_fs is just way too

You could change the name. Only 654 occurrences all over the tree @)

> confusing of a name now. But good to know interrupts must be disable in
> such a circumstance.

+not

-Andi

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